html,
body,
#app {
  height: 100%;
  width: 100%;
  overflow: hidden;
}

div {
  box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin: 0;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
}
input[type='number'] {
  -moz-appearance: textfield;
}
